Suppose there is a new vehicle launch upcoming. Initial data suggests that any given day there is either a malfunction with some part of the vehicle or possibility of a crash, with probability p which then requires a replacement. Additionally, each vehicle that has been around for n days must be replaced. What is the long-term frequency of vehicle replacements

Asix-sided die of unknown bias is rolled 20 times, and the number 3 comes up 6 times. in the next three rounds (the die is rolled 20 times in each round), the number 3 comes up 6 times, 5 times, and 7 times. the experimental probability of rolling a 3 is 10 %, which is approximately % more than its theoretical probability. (round off your answers to the nearest integer.)